Laser devices
文献类型：专利
| 作者 | DAVID GOULDING; STEPHEN P. HEGARTY; ANDREW ELLIS; GUILLAUME HUYET |
| 发表日期 | 2008-11-26 |
| 专利号 | IE20080222A1 |
| 著作权人 | UNIVERSITY COLLEGE CORK - NATIONAL UNIVERSITY OF IRELAND C RK |
| 国家 | 爱尔兰 |
| 文献子类 | 发明申请 |
| 其他题名 | Laser devices |
| 英文摘要 | The light from two Quantum Dot (QD) lasers (QDL1 and QDL2) are collimated and reflected from an arrangement of mirrors and a blazed diffraction grating. The grating ensures single longitudinal mode operation. The output from each of the lasers is independently coupled into optical fibres and then reformed into nearly collimated free-space beams. The two beams are combined at a beam splitter and directed onto a video camera, the camera output having interference fringes demonstrating that the two sources have locked their phases. One or other of the QD lasers may be coupled to a high-bandwidth photodiode and the intensity dynamics is analysed with an oscilloscope and a microwave electronic spectrum analyser. The oscilloscope indicates there are no significant fluctuations in the laser intensity. To provide higher sensitivity analysis, an electronic spectrum analyser generates a Fourier transform of the laser intensity, the output of which lacks any signal above the instrument noise floor, demonstrating the high stability of the locked output. |
| 公开日期 | 2008-11-26 |
| 申请日期 | 2008-03-27 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/51626]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | UNIVERSITY COLLEGE CORK - NATIONAL UNIVERSITY OF IRELAND C RK |
| 推荐引用方式 GB/T 7714 | DAVID GOULDING,STEPHEN P. HEGARTY,ANDREW ELLIS,et al. Laser devices. IE20080222A1. 2008-11-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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